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Old 11-28-2021, 07:28 AM
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wolf k wolf k is offline
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Join Date: Jul 2010
Location: Augusta, MO
Cobra Make, Engine: Sold ERA FIA 2139, 331 Weber IDF
Posts: 279
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44IDF, 331 cu in, 10.7;1 comp, mild 218 deg @.050 cam
135 main
175 air
F11 e tubes
52 idle (homemade)
50 pump jet bypass


These jetting tables of other's engines are interesting, but no way would I base jetting solely off of someone else's.
For instance, and if I use 60 idle jets my engine barely runs (way too rich). If I use 50 idle jets it sneezes. My car is very sensitive to idle jetting, they have most pronounced effect in my case. I have spent $500 on jets and tubes and in the end, ended up with nearly stock jetting for 44IDF.

My engine runs very well 98%. Still have very slight farting at the transition stage during mild accelerations in hot weather.
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